30 Commits

Author SHA1 Message Date
Lorenzo Pieralisi
c775697b71 microblaze/PCI: Remove pcibios_setup_bus_{self/devices} dead code
01cf9d524ff0 ("microblaze/PCI: Support generic Xilinx AXI PCIe Host Bridge
IP driver") removed pcibios calls to:

  pcibios_setup_bus_self()
  pcibios_setup_bus_devices()

Given that pcibios_fixup_bus() was the only caller of those functions they
have now become dead code (along with the functions they were calling in
turn), so they can be removed.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
[bhelgaas: remove "Fixup resources of a PCI<->PCI bridge" comment]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Cc: Bharat Kumar Gogada <bharatku@xilinx.com>
Cc: Ravi Kiran Gummaluri <rgummal@xilinx.com>
2017-08-10 15:19:25 -05:00
David Woodhouse
e854d8b2a8 PCI: Add arch_can_pci_mmap_io() on architectures which can mmap() I/O space
This is relatively esoteric, and knowing that we don't have it makes life
easier in some cases rather than just an eventual -EINVAL from
pci_mmap_page_range().

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-18 13:02:26 -05:00
David Woodhouse
11df19546f PCI: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h>
We can declare it <linux/pci.h> even on platforms where it isn't going to
be defined.  There's no need to have it littered through the various
<asm/pci.h> files.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-04-18 13:02:11 -05:00
Bjorn Helgaas
8221a01352 PCI: Unify pci_resource_to_user() declarations
Replace the pci_resource_to_user() declarations in each arch that defines
HAVE_ARCH_PCI_RESOURCE_TO_USER with a single one in linux/pci.h.

Change the MIPS static inline implementation to a non-inline version so the
static inline doesn't conflict with the new non-static linux/pci.h
declaration.

No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-06-17 14:43:34 -05:00
Christoph Hellwig
bc4b024a8b PCI: Move pci_dma_* helpers to common code
For a long time all architectures implement the pci_dma_* functions using
the generic DMA API, and they all use the same header to do so.

Move this header, pci-dma-compat.h, to include/linux and include it from
the generic pci.h instead of having each arch duplicate this include.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2016-03-07 10:40:02 -06:00
Linus Torvalds
ad90fb9751 Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block
Pull asm/scatterlist.h removal from Jens Axboe:
 "We don't have any specific arch scatterlist anymore, since parisc
  finally switched over.  Kill the include"

* 'for-4.2/sg' of git://git.kernel.dk/linux-block:
  remove scatterlist.h generation from arch Kbuild files
  remove <asm/scatterlist.h>
2015-06-25 15:22:36 -07:00
Linus Torvalds
aaa6448526 Microblaze patches for 4.2-rc1
- Some PCI fixups
 - Add new MB versions
 - Sparse fixups
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Merge tag 'microblaze-4.2-rc1' of git://git.monstr.eu/linux-2.6-microblaze

Pull Microblaze updates from Michal Simek:

 - some PCI fixups

 - add new MB versions

 - sparse fixups

* tag 'microblaze-4.2-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze/PCI: Remove unnecessary struct pci_dev declaration
  microblaze/PCI: Remove unnecessary pci_bus_find_capability() declaration
  microblaze/PCI: Remove unused declarations
  microblaze: Label local function static
  microblaze: Add missing release version code
2015-06-24 08:44:40 -07:00
Bjorn Helgaas
01d72a9518 PCI: Remove unused pci_dma_burst_advice()
pci_dma_burst_advice() was added by e24c2d963a60 ("[PATCH] PCI: DMA
bursting advice") but apparently never used.  Remove it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michal Simek <monstr@monstr.eu>	# microblaze
CC: David S. Miller <davem@davemloft.net>
2015-06-08 07:56:43 -05:00
Bjorn Helgaas
d59d36a7fc PCI: Remove unused pcibios_select_root() (again)
a6c140969b46 ("Delete pcibios_select_root") removed pcibios_select_root().
But a7db50405216 ("PCI: remove pcibios_scan_all_fns()") added a few copies
back, probably with some incorrect merge conflict resolutions.

Remove the still-unused pcibios_select_root() definitions.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-06-08 07:56:21 -05:00
Bjorn Helgaas
c4fa9a6ae2 microblaze/PCI: Remove unnecessary struct pci_dev declaration
All users of arch/microblaze/include/asm/pci.h get it by including
include/linux/pci.h, which in turn includes <asm/pci.h> after it declares
struct pci_dev.

The forward declaration here is unnecessary, so remove it.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-06-08 10:03:14 +02:00
Bjorn Helgaas
99fdc6b9bd microblaze/PCI: Remove unnecessary pci_bus_find_capability() declaration
pci_bus_find_capability() is declared in include/linux/pci.h.

Remove the pci_bus_find_capability() declaration from
arch/microblaze/include/asm/pci.h.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-06-08 10:03:06 +02:00
Bjorn Helgaas
de093d3ea1 microblaze/PCI: Remove unused declarations
The following declarations were copied from powerpc but are unused on
microblaze:

  struct pci_controller *init_phb_dynamic(struct device_node *dn)
  int remove_phb_dynamic(struct pci_controller *phb)
  struct pci_dev *of_create_pci_dev(struct device_node *node, ...)
  void of_scan_pci_bridge(struct device_node *node, ...)
  void of_scan_bus(struct device_node *node, struct pci_bus *bus)
  void of_rescan_bus(struct device_node *node, struct pci_bus *bus)

Remove them.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-06-08 10:02:55 +02:00
Christoph Hellwig
84be456f88 remove <asm/scatterlist.h>
We don't have any arch specific scatterlist now that parisc switched over
to the generic one.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-05-05 13:35:39 -06:00
Linus Torvalds
2b03adc191 Microblaze patches for 3.16-rc1
- Clean PCI and DMA handling
 - Use generic device.h
 - Some cleanups
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Merge tag 'microblaze-3.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze into next

Pull Microblaze updates from Michal Simek:
 - cleanup PCI and DMA handling
 - use generic device.h
 - some cleanups

* tag 'microblaze-3.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Fix typo in head.S s/substract/subtract/
  microblaze: remove check for CONFIG_XILINX_CONSOLE
  microblaze: Use generic device.h
  microblaze: Do not setup empty unmap_sg function
  microblaze: Remove device_to_mask
  microblaze: Clean device dma_ops structure
  microblaze: Cleanup PCI_DRAM_OFFSET handling
  microblaze: Do not setup pci_dma_ops
  microblaze: Return default dma operations
  microblaze: Enable SERIAL_OF_PLATFORM
2014-06-05 16:15:33 -07:00
Michal Simek
28d1880c68 microblaze: Do not setup pci_dma_ops
pci_dma_ops are dma_direct_ops which are setup
by default that's why not setup it again.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-06-04 06:59:56 +02:00
Hanjun Guo
a43ae58c84 PCI: Turn pcibios_penalize_isa_irq() into a weak function
pcibios_penalize_isa_irq() is only implemented by x86 now, and legacy ISA
is not used by some architectures.  Make pcibios_penalize_isa_irq() a
__weak function to simplify the code.  This removes the need for new
platforms to add stub implementations of pcibios_penalize_isa_irq().

[bhelgaas: changelog, comments]
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-05-27 16:23:58 -06:00
Grant Likely
f27446c3ad microblaze/pci: Drop PowerPC-ism from irq parsing
The Microblaze PCI code copied the PowerPC irq handling, but powerpc
needs to handle broken device trees that are not present on Microblaze.
This patch removes the powerpc special case and replaces it with a
direct of_irq_parse_and_map_pci() call.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
2013-10-24 11:50:37 +01:00
Michal Simek
ef9cb4e19b microblaze: pci: Remove duplicated header
Remove duplicated header.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-05-09 09:01:21 +02:00
John Linn
c74c8b1dcb microblaze: Added more support for PCI
In order to use an off the shelf nic, like the intel pro card,
changes are needed to support pci dma interfaces and other
small changes.

Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-10-04 15:19:33 +02:00
Bjorn Helgaas
fb127cb9de PCI: collapse pcibios_resource_to_bus
Everybody uses the generic pcibios_resource_to_bus() supplied by the core
now, so remove the ARCH_HAS_GENERIC_PCI_OFFSETS used during conversion.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-23 20:19:04 -07:00
Bjorn Helgaas
aa23bdc0a8 microblaze/PCI: get rid of device resource fixups
Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.

CC: Michal Simek <monstr@monstr.eu>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-23 20:19:02 -07:00
Myron Stowe
b51d4a3e36 PCI: MicroBlaze: convert pcibios_set_master() to a non-inlined function
This patch converts MicroBlaze's architecture-specific
'pcibios_set_master()' routine to a non-inlined function.  This will
allow follow on patches to create a generic 'pcibios_set_master()'
function using the '__weak' attribute which can be used by all
architectures as a default which, if necessary, can then be over-
ridden by architecture-specific code.

Converting 'pci_bios_set_master()' to a non-inlined function will
allow MicroBlaze's 'pcibios_set_master()' implementation to remain
architecture-specific after the generic version is introduced and thus,
not change current behavior.

No functional change.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-01-06 12:10:38 -08:00
Benjamin Herrenschmidt
72bdee79f8 microblaze/pci: Remove powermac originated cruft
The whole business with re-assigning all bus numbers, creating
an OF bus "map" etc... is ancient powermac stuff that you really
don't care about on microblaze.

Similarly pci_device_from_OF_node() is unused and by getting rid
of it we can get rid of a whole lot of code otherwise unused on
this architecture

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Michal Simek <monstr@monstr.eu>
2011-06-08 09:08:35 +10:00
Lucas De Marchi
25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
FUJITA Tomonori
b9b12fd147 microblaze: use asm-generic/pci-dma-compat.h
Use asm-generic/pci-dma-compat.h instead of the homegrown
pci_set_dma_mask and pci_set_consistent_dma_mask.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
2010-10-21 15:51:37 +10:00
Michal Simek
16f6e99892 microblaze: pci-dma: use include/linux/dma-mapping.h
Based on af407c6db16aa9ca63559076dbe620220a822580
and f41b177157718abe9a93868bb76e47d4a6f3681d

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-05-06 11:21:59 +02:00
Michal Simek
733cc21831 microblaze: Add support for Xilinx PCI host bridge
This patch is based on powerpc patch
64f16502475ddf663169369fffff6da9b10ea9fb

We did some cleanups and removed powerpc parts.
There is one new debug early listing function too.

Exclude function is only in Debug options.

We tested in on custom board.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11 14:05:18 +01:00
Michal Simek
830980a0a8 microblaze: Add pci.h
Add pci.h for microblaze. It is based on powerpc pci.h

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-03-11 14:00:43 +01:00
Remis Lima Baima
0a58458341 microblaze: convert all simple headers to use asm-generic
All the simple microblaze header files were adapted to use their
asm-generic implementations. These files are more simple and were quite
straightforward to change.

fb.h, vga.h and parport.h previously did not exist, using
the generic version makes it possible to build more drivers
successfully in allyesonfig.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06 10:26:55 +02:00
Michal Simek
36174f4e87 microblaze_v8: pci headers
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-03-27 14:25:48 +01:00